Demountable-rim tool.



0. L. BABCOCK.

' nEMouNTABLE mM TooL.

APPLICATION FILED JUNE 9. 19|?.

ATTORNEYS.l

meenam. l

,naar onine i:

QMR L. IBBGOCK, 0F WINNEBAGD, NEBRASKA.

lDlElllIOUNUlAlBLE-RIM T001'.

TQ all whom t may concern.'

` Be it known that l, OMAR L.-jBAJBcoGK, a citizen of the UnitedyStates, andy residenty of Winnebago, in the county of Thurston and Stateof Nebraska, have invented certain new and useful Improvements inDemountable-Rim Tools, of which the following is a specification.

'lhe present invention relates to demountable rim tools.

The invention has for its primary object the production of an improvedtool for contracting and ex anding demountable rims to facilitate theemounting and remounting of the tires.

Another object of the inventionis the production of an improveddemountable-rim tool embodying extensible and retractable means for.expanding and contracting the rim and adapted to be actuated by theusual automobile jack.

Still another object ofthe invention is the production of ademountable-rim tool em-" bodying extensible and retractable means forexpanding -and 'contracting the rim and adapted to be operated inleitherdirection by the extending of an automobile jack.

With these and other objects inview, the invention consisting in theconstructiomcombination and novel arrangement of parts will be fully4yunderstood from the following description reference being had to theaccompanying drawings, which form a part of -this application and inwhich like characters of reference indicate corresponding .partsthroughout thevseveral views, of which,-

Figure 1 is a side elevation of ao demounti able rim with the device ofmy invention appliedl thereto and showing a jack as used ,in

connection with the device; and

Fig. 2.:is an enlarged plan of the device,

Vparts being cut away. y

Although ll have illustrated and hereinafter described the preferredembodiment of ythe invention I would not be understood as being limitedto the specific structure chosen for illustration for variousalterations and modifications in the'details of cnstruction andarrangement of parts may be made vwithout departing from the spirit andscope of the invention as delined in the appended claims.`

Referring, now, to theA illustrations,rthe device conslsts' .of anextensible and retractable frame includin tw@ pairs of parallel rods, 3and/1,' slidab e freely through crossA Speciication of Letters JPatent.Patented dipl". 23, llll application md June a 1917. serial no. rzaeos.

ber, 9, to provide means engageable with the inner periphery of the rimto expand the rim, ln the present embodiment the rods of each pair areformed integrally with a cross-member 9, forming substantially a U-Lshaped frame member.` At their angles, the 'Ll-shaped members are formedwith eyes 10, in whlch are pivoted eyes 11, formed on the shanks ofrim-engaging hooks, 12.

l When theset screws, 8, of the bar, '5, and the set-screws 7, of thebar, 6, are tightened and the other set-screwsr-all loosened, itisevident that movement of the bars from'each other will retract the framemembers, while if the said set-screws 8 and 7 are loosenedA and theother set-screws tightened, movement of the bars from each other willfextend the4 frame members. In operation the tool is applied kas shown/in Fig. 1 the hooks of the frame members being engaged withdiametrically opposite sides of the rims. A jack is then interposedbetween the cross-bars. The jack illustrated is a familiar form ofvehicle jack including a support, 13, carrying an extensible post, 14,and a lever, 15, oscillation of which extends the post. I

It is now. clear the jack operates to force the bars from each other toextend or retract the` frame members, according as which setscrews aretightened.

Having thus described my invention what l claim as new anddesire tosecure-by lietters 'Patent of the United States, is-

1. A demountable-rim tool comprising two pairs of parallel rods, meanson the rods en-f' tally opposite sides of the inner periphery 5' an ymeans for releasably engagmg each pair o f rods with either cross-barwhereby relt1ve` movement of the cross-bars 1n one. direction willextend or retr'a'ct the rods according to the respective engagement ofthe rods and cross-bars.

In testimony whereof, I have hereunto set my hand this 28th day of May,1917 OMAR L. BABCOCK."

